Any 5.3 Conversions out there w/4x4...? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**amcgeh01** · 03-10-2010, 11:23 PM

If so, I have a question regarding the usage of the original transmission support mount which also cradled the NP208 case.....? I am getting close to installation and was wondering if anyone has done this already and what you used to cradle both the new 4L60/65e and the t-case... If I can still use the original then great - no money wasted... If you found you could not use it, then please list what or how you resolved it.. Thanks in advance..

- A.J.

**amcgeh01** · 03-14-2010, 12:25 AM

** Bump **.. Still looking for some input on this one...

72truckman · 03-14-2010, 02:45 AM

Could just build a simple square steel crossmember...

**Thealien** · 03-14-2010, 09:07 AM

Nevermind I relooked at your build thread. NV4500 so no trans issues. Do you just have engine mounts and no crossmember?

72truckman, Can I see your engine mounting/crossmember? Are you running a lift? Any driveshaft/transmission pan interferance issues?

I am in the middle of an NP205/4L60 5.3 swap on a stock height Jimmy. I believe I have the differential/crossmember interferance taken care of. I need to test fit then powdercoat the crossmember and then tackle modifying the tranny pan. Interested in how you handled your installation.

72truckman · 03-14-2010, 01:53 PM

Quote:

Originally Posted by Thealien

Nevermind I relooked at your build thread. NV4500 so no trans issues. Do you just have engine mounts and no crossmember?

72truckman, Can I see your engine mounting/crossmember? Are you running a lift? Any driveshaft/transmission pan interferance issues?

I am in the middle of an NP205/4L60 5.3 swap on a stock height Jimmy. I believe I have the differential/crossmember interferance taken care of. I need to test fit then powdercoat the crossmember and then tackle modifying the tranny pan. Interested in how you handled your installation.

From the factory, all of the new Gen. III and IV blocks ares structural and used as a crossmember. I just made simple frame mount perches with polyurethane insulators.

wheatlysk5 · 03-16-2010, 10:34 AM

ON my 4l60e i used the original crossmember and built it up with some sq tubing and then used the factory 4l60e rubber mount.

**amcgeh01** · 03-24-2010, 07:36 PM

Quote:

Originally Posted by wheatlysk5

ON my 4l60e i used the original crossmember and built it up with some sq tubing and then used the factory 4l60e rubber mount.

HI Wheatly,

Did you happen by chance to take some pics of your design so I can look at it to see if that's what I need..? Thanks..

03-10-2010, 11:23 PM	#1
amcgeh01 Senior Member Join Date: Jul 2009 Location: SoCal Posts: 206	Any 5.3 Conversions out there w/4x4...? If so, I have a question regarding the usage of the original transmission support mount which also cradled the NP208 case.....? I am getting close to installation and was wondering if anyone has done this already and what you used to cradle both the new 4L60/65e and the t-case... If I can still use the original then great - no money wasted... If you found you could not use it, then please list what or how you resolved it.. Thanks in advance.. - A.J. __________________ ******************************************** In-work on my 5.3L/4L65E/NP208 case conversion into a 1972 GMC JImmy 4x4... Not as simple as it looks folks..

03-14-2010, 12:25 AM	#2
amcgeh01 Senior Member Join Date: Jul 2009 Location: SoCal Posts: 206	Re: Any 5.3 Conversions out there w/4x4...? Bump .. Still looking for some input on this one... __________________ ******************************************** In-work on my 5.3L/4L65E/NP208 case conversion into a 1972 GMC JImmy 4x4... Not as simple as it looks folks..

03-14-2010, 02:45 AM	#3
72truckman Registered User Join Date: Mar 2006 Location: San Ramon, California Posts: 276	Re: Any 5.3 Conversions out there w/4x4...? Could just build a simple square steel crossmember... __________________ My 1972 Blazer 5.3 E85/ NV4500 5spd 4x4 Work in Progress http://67-72chevytrucks.com/vboard/s...d.php?t=291482 **SOLD!!!!!** 1965 GMC 4X4 http://67-72chevytrucks.com/vboard/s...d.php?t=294727

03-14-2010, 09:07 AM	#4
Thealien Senior Member Join Date: Jun 2007 Location: Pine Ridge Florida Posts: 4,134	Re: Any 5.3 Conversions out there w/4x4...? Nevermind I relooked at your build thread. NV4500 so no trans issues. Do you just have engine mounts and no crossmember? 72truckman, Can I see your engine mounting/crossmember? Are you running a lift? Any driveshaft/transmission pan interferance issues? I am in the middle of an NP205/4L60 5.3 swap on a stock height Jimmy. I believe I have the differential/crossmember interferance taken care of. I need to test fit then powdercoat the crossmember and then tackle modifying the tranny pan. Interested in how you handled your installation. __________________ Click on my Not really a build thread, yet NOT SO RUST FREE RUST FREE BLAZER LS ENGINE SWAP INFORMATION THREAD BOLT RESTORATIONS 4l60 to an NP205 Last edited by Thealien; 03-14-2010 at 09:14 AM.

03-16-2010, 10:34 AM	#6
wheatlysk5 Registered User Join Date: Dec 2008 Location: Pierre, SD Posts: 19	Re: Any 5.3 Conversions out there w/4x4...? ON my 4l60e i used the original crossmember and built it up with some sq tubing and then used the factory 4l60e rubber mount.



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